ci: reduce office-hours reminder spam by posting only on most recent PR per user (hiero-ledger#1150)

Signed-off-by: Tianyang Ren <[email protected]>

Author: TianyangRen

.github/workflows/bot-office-hours.yml

@@ -37,9 +37,9 @@ jobs:
           echo "Meeting week detected. Proceeding to notify open PRs."
 
           REPO="${{ github.repository }}"
-          PR_LIST=$(gh pr list --repo $REPO --state open --json number --jq '.[].number')
+          PR_DATA=$(gh pr list --repo $REPO --state open --json number,author,createdAt)
 
-          if [ -z "$PR_LIST" ]; then
+          if [ -z "$PR_DATA" ] || [ "$PR_DATA" = "[]" ]; then
             echo "No open PRs found."
             exit 0
           fi
@@ -59,8 +59,8 @@ jobs:
           EOF
           )
 
-          for PR_NUM in $PR_LIST; do
-            echo "Processing PR #$PR_NUM"
+          echo "$PR_DATA" | jq -r 'group_by(.author.login) | .[] | sort_by(.createdAt) | reverse | .[0] | .number' | while read PR_NUM; do
+            echo "Processing most recent PR #$PR_NUM for user"
             
             ALREADY_COMMENTED=$(gh pr view $PR_NUM --repo $REPO --json comments --jq '.comments[].body' | grep -F "Office Hour Bot" || true)
 

CHANGELOG.md

@@ -54,6 +54,7 @@ This changelog is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.
 - Added advanced issue template for contributors `.github/ISSUE_TEMPLATE/06_advanced_issue.yml`.
 
 ### Changed
+- Reduce office-hours reminder spam by posting only on each user's most recent open PR, grouping by author and sorting by creation time (#1121)
 - Pylint cleanup for token_airdrop_transaction_cancel.py (#1081) [@tiya-15](https://github.com/tiya-15)
 - Move `account_allowance_delete_transaction_hbar.py` from `examples/` to `examples/account/` for better organization (#1003)
 - Improved consistency of transaction examples (#1120)